watch iptables counters

watch --interval 0 'iptables -nvL | grep -v "0 0"'

This will allow you to watch as matches occur in real-time. To filter out only ACCEPT, DROP, LOG..etc, then run the following command: watch 'iptables -nvL | grep -v "0 0" && grep "ACCEPT"' The -v is used to do an inverted filter. ie. NOT "0 0"

By: Code_Bleu

2009-08-22 18:18:05

grep watch grep iptables watch invert-filter

3 Alternatives + Submit Alt

watch iptables counters

Watch the number of packets/bytes coming through the firewall. Useful in setting up new iptables rules or chains. Use this output to reorder rules for efficiency. Show Sample Output

watch 'iptables -vL'

alanr723 · 2009-03-20 14:49:12 19

watch iptables counters

this alternative shows the differences as they occur so that they are made plain Show Sample Output
This is sample output - yours may be different.
```
@@ -28 +28 @@
-  339 27684 zone_lan_forward  all  --  br-lan *       0.0.0.0/0            0.0.0.0/0           
+  340 27768 zone_lan_forward  all  --  br-lan *       0.0.0.0/0            0.0.0.0/0           
```
0

while true; do iptables -nvL > /tmp/now; diff -U0 /tmp/prev /tmp/now > /tmp/diff; clear; cat /tmp/diff; mv /tmp/now /tmp/prev; slee p 1; done

unixmonkey34223 · 2012-04-15 00:02:33 3
watch iptables counters

This will highlight (with a box over it) any changes since the last refresh.
This is sample output - yours may be different.
0

watch -d -n 2 iptables -nvL

xxdesmus · 2014-02-23 16:35:03 30

What Others Think

You can use watch to identify/highlight the changes between refreshes like this: watch -d -n 2 iptables -nvL It'll highlight (with a box over it) any changes since the last refresh.

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This is EXACTLY what I needed, thanks!

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